I tried to implement pos customer display.

1. Installed posbox image on raspberry pi 3

2. Connected printer, then prints ip address.

3. I tried to configure pos customer display using this below link

https://www.odoo.com/forum/help-1/question/step-by-step-guide-for-installing-customer-display-using-posbox-125783

1. Installed hw_customer_display on posbox

2. Installed pos_customer_display on odoo server

3. Configured pos proxy address with posbox ip address (192.168.50.36:8069)

4. 
   

My Odoo instance run on ubuntu 16.04 and client running on windows.

1. I connected customer display on windows machine. But nothing displayed.

2. Connect customer display on posbox, then it displays 'P'. Thats all.

3. Then i remove `hw_scale` from `/root_bypass_ramdisks/etc/init.d/odoo`. and tried again.

4. Result was, the letter `P` disappeared, nothing else.

5.